package com.wangxinyuchuan.demo.adapter.extend_mode;

import java.io.IOException;

/**
 * @author wangxinyuchuan
 * @date 2023/4/9 10:15 PM
 */
public abstract class FileIO {

    public abstract void readFromFile(String fileName) throws IOException;

    public abstract void writeToFile(String fileName) throws IOException;

    public abstract void setValue(String key, String value);

    public abstract String getValue(String key);

}
